40 BULLETIN 71, UNITED STATES NATIONAL MUSEUM." 



In the Challenger report under this variety Brady figures what 

 seem from a study of the North Pacific material to be two distinct 

 forms. In plate 60, figure 11, is given a figure of a specimen which in 

 its essential characters is very similar to the specimen figured here, 

 plate 16, figure 3. On plate 60, figures 15, 16 are figured specimens 

 with a very wide keel with numerous fine tubulations and the surface 

 ornamented with very fine striations instead of costse. I find in the 

 North Pacific material that this distinction is met with in all the 

 specimens examined, and I have included under Brady's var. 

 tenuistriata such specimens as are figured here and selected by Side- 

 bottom in his figures above referred to. The other form is placed 

 under the following species. 



LAGENA SUBLAGENOIDES, new species. 



Plate 16, fig. 4. 



Lagena lagenoides (part) H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, 

 p. 479, pi. 60, figs. 13, 14. — H. B. Brady, Parker, and Jones, Trans. Zool. 

 Soc. London, vol. 12, 1888, p. 223, pi. 44, fig. 23.— Millett, Journ. Roy. 

 Micr. Soc, 1901, p. 623, pi. 14, fig. 9 [?] 



Description. — Test flask-shaped, much compressed, central body of 

 test elongate ovate tapering into a long, slender neck, surrounded by a 

 wide peripheral keel with numerous close-set, fine tubulations, central 

 portion smooth, apical end of keel usually but not always emarginate. 



Length 0.60 to 0.85 mm. 



Distribution. — This, like L. formosa Schwager, seems to be a 

 deep-water species. It was found at three North Pacific stations; 

 Albatross D2806 in 1,379 fathoms off the Galapagos Islands; Nero 

 170 in 1,990 fathoms and 173 in 2,111 fathoms near the Midway 

 Islands. Type-specimen, Cat. No. 8540, U.S.N.M. from Albatross 

 station D2806. 



This seems to be a distinct species from the ordinary forms of L. 

 lagenoides Williamson, distinguishable by its much broader keel, with 

 numerous fine, closely set tubulations, and long, slender neck. 



LAGENA SUBLAGENOIDES, new species, var. STRIATULA, new variety. 



Plate 16, fig. 5. 



Lagena lagenoides (Williamson), var. tenuistriata H. B. Brady (part), Rep. Voy. 

 Challenger, Zoology, vol. 9, 1884, p. 479, pi. 60, figs. 15, 16 (not fig. 11). 



Description. — Variety distinguished from the typical form by the 

 surface ornamentation of the body of the test, consisting of delicate, 

 slightly irregular longitudinal striae. 



Length 1 mm. 



Distribution. — Strangely enough this variety was not found at any 

 of the stations where the typical form occurred. Type-specimen, 

 Cat. No. 8541, U.S.N.M., from Nero station 1440 in 1,737 fathoms, 



